Grierson Barnes

Mage 12MNMAKO

189 plausible swims · 35 meets · 2024-01-06 → 2026-06-28

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 33.53 +0.74s to B 2025-12-14 2025 MN MAKO DECEMBER INTRASQUAD venue
100 Freestyle SCY 1:18.67 +7.18s to B 2026-01-10 2026 MN Mako Snowflake Splash venue
200 Freestyle SCY 2:54.49 +18.50s to B 2026-01-24 2026 MN HAST JAN IMX fast pool
500 Freestyle SCY 7:36.56 +36.67s to B 2026-01-25 2026 MN HAST JAN IMX fast pool
50 Backstroke SCY 42.98 +4.49s to B 2025-02-02 2025 MN STAR Invite
100 Backstroke SCY 1:06.22 A+0.23s to AA 2024-12-21 2024 MN AQJT Holiday Invite
200 Backstroke SCY 1:56.24 AAAA 2024-01-06 2024 MN AQJT Winter Invite
50 Breaststroke SCY 37.63 BB+0.94s to A 2024-01-06 2024 MN AQJT Winter Invite
100 Breaststroke SCY 1:35.36 +2.77s to B 2026-01-25 2026 MN HAST JAN IMX fast pool
200 Breaststroke SCY 3:26.98 +10.49s to B 2026-02-28 2026 MN MTKA Minnesota Regional Championship venue
50 Butterfly SCY 40.95 +3.86s to B 2026-01-25 2026 MN HAST JAN IMX fast pool
100 Butterfly SCY 1:39.53 +16.64s to B 2025-12-14 2025 MN MAKO DECEMBER INTRASQUAD venue
100 Individual Medley SCY 1:30.17 +8.28s to B 2026-01-11 2026 MN Mako Snowflake Splash venue
200 Individual Medley SCY 3:17.48 +18.19s to B 2025-10-04 2025 MN RFSC Skeleton Splash Invitational venue
50 Freestyle LCM 37.67 +0.28s to B 2026-06-27 2026 STAR Summer Splash Invite fast pool
100 Freestyle LCM 1:28.62 +6.53s to B 2026-06-06 2026 MN NSAC Summer Invite venue
200 Freestyle LCM 3:13.90 +14.71s to B 2026-06-28 2026 STAR Summer Splash Invite fast pool
50 Backstroke LCM 50.83 +6.24s to B 2026-06-28 2026 STAR Summer Splash Invite fast pool
100 Backstroke LCM 1:55.51 +18.32s to B 2026-06-27 2026 STAR Summer Splash Invite
50 Breaststroke LCM 49.55 B+3.66s to BB 2026-06-28 2026 STAR Summer Splash Invite fast pool
100 Breaststroke LCM 1:49.06 +1.27s to B 2026-06-27 2026 STAR Summer Splash Invite fast pool
200 Breaststroke LCM 3:52.40 +4.51s to B 2026-06-06 2026 MN NSAC Summer Invite venue
50 Butterfly LCM 57.22 +15.23s to B 2024-07-13 2024 MN MTKA Minnesota Regional Championship venue
100 Butterfly LCM 1:42.12 +7.03s to B 2024-07-27 2024 MN RSC LC 10&U State Championship
200 Individual Medley LCM 3:45.53 +20.54s to B 2026-06-27 2026 STAR Summer Splash Invite fast pool

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 12.

Pool tags are a venue speed heuristic (median deviation of all swims there vs each swimmer's typical time) — see the venue page for the method.

Fastest relay legs

LegCourseTime StartRelayDateMeet
50 Freestyle SCY 35.97 flying 200 Free Relay (leg 2) 2025-10-04 2025 MN RFSC Skeleton Splash Invitational
50 Breaststroke SCY 43.12 flying 200 Medley Relay (leg 2) 2026-01-24 2026 MN HAST JAN IMX

Reconstructed from relay split marks. Flat = lead-off (comparable to individual times); flying starts run ~0.5–0.7s fast and are not PRs.

IMX / IMR

IMX 11-12 · SCY

1920 points (5/5 events)

EventTime Points
500 FR SCY 7:36.56 328
100 BK SCY 1:06.22 725
100 BR SCY 1:35.36 359
100 FL SCY 1:39.53 209
200 IM SCY 3:17.48 299

IMR 11-12 · SCY

1755 points (5/5 events)

EventTime Points
200 FR SCY 2:54.49 301
50 BK SCY 42.98 282
50 BR SCY 37.63 586
50 FL SCY 40.95 276
100 IM SCY 1:30.17 310

Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.

PR splits

100 Freestyle SCY 1:18.67

37.77
40.90

Front half 37.77s · back half 40.90s

200 Freestyle SCY 2:54.49

37.89
44.30
48.19
44.11

Front half 82.19s · back half 92.30s

500 Freestyle SCY 7:36.56

41.24
46.35
46.14
47.24
45.38
46.56
48.57
45.54
45.71
43.83

Front half 226.35s · back half 230.21s

200 Backstroke SCY 1:56.24 split/total mismatch

38.85
4.22
1.24
0.79
11.72
2.60

Front half 44.31s · back half 71.93s

100 Breaststroke SCY 1:35.36

44.71
50.65

Front half 44.71s · back half 50.65s

200 Breaststroke SCY 3:26.98

49.33
52.46
53.39
51.80

Front half 101.79s · back half 105.19s

100 Butterfly SCY 1:39.53

46.63
52.90

Front half 46.63s · back half 52.90s

100 Individual Medley SCY 1:30.17

44.86
45.31

Front half 44.86s · back half 45.31s

200 Individual Medley SCY 3:17.48

45.55
54.88
53.42
43.63

Front half 100.43s · back half 97.05s

100 Freestyle LCM 1:28.62

41.37
47.25

Front half 41.37s · back half 47.25s

200 Freestyle LCM 3:13.90

43.18
50.66
51.41
48.65

Front half 93.84s · back half 100.06s

100 Backstroke LCM 1:55.51

56.92
58.59

Front half 56.92s · back half 58.59s

100 Breaststroke LCM 1:49.06

49.05
60.01

Front half 49.05s · back half 60.01s

200 Breaststroke LCM 3:52.40

52.07
60.91
59.46
59.96

Front half 112.98s · back half 119.42s

100 Butterfly LCM 1:42.12 split/total mismatch

58.07
59.04
45.05
57.07

200 Individual Medley LCM 3:45.53

53.82
62.33
59.60
49.78

Front half 116.15s · back half 109.38s

Reaction time

fastest 0.88s average 0.923s slowest 0.98s 3 electronic starts

Start reaction over time faster starts higher

From electronically-timed starts only (~2% of corpus swims carry a reaction time). PRs with a recorded reaction show an RT chip in the splits section above.

Progression

Faster times are higher. One card per event, all courses & history.

50 Freestyle SCY 33.53 15 swims
100 Freestyle SCY 1:18.67 10 swims
200 Freestyle SCY 2:54.49 9 swims
500 Freestyle SCY 7:36.56 5 swims
50 Backstroke SCY 42.98 14 swims
100 Backstroke SCY 1:06.22 18 swims
200 Backstroke SCY 1:56.24 1 swim
50 Breaststroke SCY 37.63 17 swims
100 Breaststroke SCY 1:35.36 15 swims
200 Breaststroke SCY 3:26.98 8 swims
50 Butterfly SCY 40.95 12 swims
100 Butterfly SCY 1:39.53 2 swims
100 Individual Medley SCY 1:30.17 14 swims
200 Individual Medley SCY 3:17.48 6 swims
50 Freestyle LCM 37.67 4 swims
100 Freestyle LCM 1:28.62 6 swims
200 Freestyle LCM 3:13.90 4 swims
50 Backstroke LCM 50.83 3 swims
100 Backstroke LCM 1:55.51 4 swims
50 Breaststroke LCM 49.55 4 swims
100 Breaststroke LCM 1:49.06 7 swims
200 Breaststroke LCM 3:52.40 4 swims
50 Butterfly LCM 57.22 2 swims
100 Butterfly LCM 1:42.12 2 swims
200 Individual Medley LCM 3:45.53 3 swims